ELECTROMAGNETIC VALVE, ELECTROMAGNETIC INLET VALVE MECHANISM, AND HIGH-PRESSURE FUEL PUMP

WIPO Patent Application WO/2018/221077

A1

Provided are an electromagnetic valve, an electromagnetic inlet valve mechanism, and a high-pressure fuel pump that suppress movement of an inlet valve in the radial direction and improve flow rate controllability even when pressure becomes high or flow rate becomes high. This valve mechanism is provided with: a spring member that includes an end coil section and a movable section and that is secured by a spring support section on the side opposite the end coil section; and a valve body that is biased by the end coil section-side of the spring member. The valve body has formed therein a protrusion section that protrudes toward the spring support section-side and that is located on the radially inner side of the spring member. In a cross-section that passes through the radial center of the spring member and is cut in the spring member axial direction, a tip section of the protrusion section is positioned on the spring support section-side with respect to a coil cross-section on both sides of at least the first turn of the movable section that is adjacent to the end coil section.

SAITO ATSUJI (JP)
USUI SATOSHI (JP)
NEMOTO MASASHI (JP)
AKIYAMA MORITSUGU (JP)
TOKUMARU KAZUAKI (JP)
UCHIYAMA YASUHISA (JP)
HAYATANI MASAHIKO (JP)
ONOSE TORU (JP)
HIMOTO TOHRU (JP)
SUMIYA NOBORU (JP)

PCT/JP2018/016525

December 06, 2018

April 24, 2018

Click for automatic bibliography generation  

HITACHI AUTOMOTIVE SYSTEMS LTD (JP)

F02M59/36; F02M59/34; F02M59/44

JP2017066956A	2017-04-06
JP2017002759A	2017-01-05
JP2002089410A	2002-03-27
JP2017072026A	2017-04-13

TODA Yuji (JP)

View/Download PDF      PDF Help

Previous Patent: FUEL INJECTION VALVE AND ENGINE SYSTEM

Next Patent: FABRIC AND FLUID-ABSORBENT ARTICLE